你好：列表如下哦 公称尺寸inch inch 公称通径DN 国标A 国标B 美标 日标
1/8" 6 10.3
1/4" 8 13.7
3/8" 10 17.1
1/2" 0.84 15 21.3 18 21.3
3/4" 1.05 20 26.9 25 26.7 27.2
1" 1.315 25 33.7 32 33.4 34
11/4" 1.66 32 42.4 38 42.2 42.7
11/2" 1.9 40 48.3 45 48.3 48.6
2" 2.375 50 60.3 57 60.3 60.5
21/2" 2.875 65 76.1 76 73 76.3
3" 3.5 80 88.9 89 88.9 89.1
31/2" 90 101.6 101.6
4" 4.5 100 114.3 108 114.3 114.3
5" 5.563 125 139 133 141.3 139.8
6" 6.625 150 168.3 159 168.3 165.2
8" 8.625 200 219.1 219 219.1 216.3
10" 10.75 250 273 273 273.1 267.4
12" 12.75 300 323.9 325 323.9 318.5
14" 14 350 355.6 377 355.6 355.6
16" 16 400 406.4 426 406.4 406.4
18" 18 450 457 478 457.2 457.2
20" 20 500 508 529 508 508
22" 22 550 559 558.8 558
24" 24 600 610 630 609.6 609.6
26" 26 650 660 660.4 660.4
28" 28 700 711 720 711.2 711.2
30" 30 750 762 762 762
32" 32 800 813 820 812.8 812.8
34" 34 850 864 863.6 863.6
36" 36 900 914 920 914.4 914.4
38" 38 950 965 965.2 965.2
40" 40 1000 1016 1020 1016 1016
42" 42 1050 1067 1066.8 1066.8
44" 44 1100 1118 1120 1117.6 1117.6
46" 46 1150 1168 1168.4 1168.4
48" 48 1200 1219 1220 1219.2 1219.2